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Re: How to filter on timestamps?

From: Mike Rylander <miker(at)purplefrog(dot)com>
To: "B(dot)W(dot)H(dot) van Beest" <bwvb(at)xs4all(dot)nl>
Subject: Re: How to filter on timestamps?
Date: 2004-07-07 03:28:30
Message-ID: ccfrjl$2po8$1@news.hub.org (view raw or flat)
Thread:
Lists: pgsql-sql
<posted & mailed>

B.W.H. van Beest wrote:

> 
> 
> I have a table where one of the columns is of type 'TIMESTAMP'
> 
> How can I do a query to filter on the TIMESTAMP value, e.g. to obtain
> all rows earlier than a certain time stamp?

Think of the math opperators '<' and '>' as 'before' and 'after',
respectively.  ie:

SELECT * FROM table WHERE begin_date > '2004-07-06';

You can also use BETWEEN:

SELECT * FROM table WHERE update_timestamp BETWEEN '2004-07-01' AND
'2004-07-06';

Remember that when timestamps are cast to dates, they are cast with
00:00:00.0 as the time part.

See the docs on this at
http://www.postgresql.org/docs/7.4/interactive/datatype-datetime.html and
http://www.postgresql.org/docs/7.4/interactive/functions-datetime.html .

--miker
> 
> Regards,


In response to

pgsql-sql by date

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Subject: Help with sql statement grouping and distinct
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Subject: How to filter on timestamps?

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